How to Convert Centimeters to Inches?

Convert centimeters to inches easily. 1 inch = 2.54 cm. Learn the formula and use our free unit converter for instant metric to imperial conversions.

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Quick Answer

To convert centimeters to inches, divide by 2.54. For example, 10 cm ÷ 2.54 = 3.94 inches. The formula is: inches = centimeters ÷ 2.54. Use our Unit Converter for quick conversions between metric and imperial units.

Key Takeaways

The exact conversion is 1 inch = 2.
For rough estimates, remember that 2.
Screen sizes (TVs, monitors) are measured diagonally in inches worldwide, even in metric countries.

Explanation

The exact conversion is 1 inch = 2.54 centimeters. This is an internationally agreed-upon standard since 1959. To convert cm to inches, divide by 2.54. To convert inches to cm, multiply by 2.54.

Common conversions: 1 cm = 0.394 inches, 5 cm = 1.97 inches, 10 cm = 3.94 inches, 30 cm = 11.81 inches, 100 cm = 39.37 inches (just over 3 feet).

This conversion is frequently needed when shopping internationally, measuring for clothing, or working with products that use different measurement systems.

Things to Know

For rough estimates, remember that 2.5 cm is approximately 1 inch.
Screen sizes (TVs, monitors) are measured diagonally in inches worldwide, even in metric countries.
Medical measurements may use either system depending on the country and context.